Importance of Workmanship on the Durability of Concrete

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Title: Importance of Workmanship on the Durability of Concrete

Author(s): D. W. Welfare

Publication: Special Publication

Volume: 100

Issue:

Appears on pages(s): 323-334

Keywords: concrete durability; mixing; mix proportioning; placing; skilled workers; training courses; Construction

Date: 4/1/1987

Abstract:
Regardless of all the improvements in design and technology, there can be no doubt that the longevity or durability of concrete structures may be affected by certain imponderables. Chemists and designers are still searching for solutions in their own special fields when, perhaps, the real answer lies elsewhere. It is the object of this paper to take another road to perfection by investigating the mystique that surrounds the physical placing of concrete and reducing it to a measurable, disciplined, and easily repetitive activity. Concrete is generally allotted two stages: design, and batching and mixing. This paper sets out to show the placing of concrete as the third stage, of importance equal to that of the other two.